Improvement in detaching-hooks



C. F. STONE 8:. A. K. MANSFIELD.

Detaching-Hnoks. N0.157,084. v Patented N0v.24,1874.

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CHARLES F. STONE, OF WALTHAM, AND ALBERT K. MANSFIELD, OF

BOSTON, MASSACHUSETTS.

IMPROVEMENT IN DETACHlNG-HOOKS.

Specification forming part of Letters Patent N 0. 157,084, dated November 24, 1874; application filed August 28, 1874. I

To all whom it may concern:

Be it known that We, CHARLES F. STONE, of Waltham, and ALBERT K. MANSFIELD, of

Boston, Massachusetts, have invented an Im-.

provement in Boats Cast-Off, of which the following is a specification:

Our invention consists of an apparatus to take the place of the ordinary hook and eye used for hanging ships boats, or for other purposes. To release a ships boat from its tackle, when the boat is hung by the ordinary method, is often a matter of time and trouble, since the ropes must be slack enough to allow the hook to be turned about and drawn out. When the boats are resorted to in a heavy sea agreat advantage would be gained and many accidents avoided if they could be instantly released from their tackle after touching the water. To accomplish this is the purpose of our invention.

In the accompanying drawing, Figure. 1 is an elevation, and Fig. 2 a vertical section at the line A B of Fig. 1, of our apparatus.

We name the apparatus a boats cast-0E, and one of them is 'to be fastened to the bow and one to the stern of the boat by means of bolts passing through the holes F F. I is the eye to which the rope is attached by which the boat is hung. At the lower end of the eye is a short stud, E, which fits into the socket S S. The socket turns in bearings O O. T is a tongue, by means of which the eye is held from falling out of the socket. The drawing shows the parts in the positions they would spherical inside.

have when the boat is hung. On lifting the handle H, however, the eye is instantly released from the socket. Unless the handle is lifted the eye cannot, by any possibility, be released on account of the tongue T, which obstructs the passage out of the socket, looking the eye. securely in place. The boat may also be secured to the ropes as instantly as re leased by simply lifting the handle H and dropping the eye into the socket, then letting the handle fall. In place of the stud E a sphere or portion of a sphere may be used on the eye, in which use the socket should also be made The handles H of the two cast-ofl's at the opposite ends of the boat may be connected by means of ropes or rods and levers, so that the boat may be released at both ends at once.

We do not confine ourselves to the use of this apparatus on boats, but it may be used in various other cases where quick releasing or attaching and a securely-locked attachment would be an advantage.

We claim as our invention- The socket S S, operated by the handle H, or its equivalent, in combination with the eye and stud E, and the tongue T for locking the eye in place, all operating as and for the pun pose described.

CHARLES F. STONE. ALBERT K. MANSFIELD. Witnesses:

NATHAN O. LEwrs, HORACE MOMURTRIE. 

